How to load this . json file into a google API?

Question

I’m having trouble uploading a file. json that contains polylines from the city of Rio de Janeiro within the Google Maps API.

I want to apply these polylines of routes between cities of Rio de Janeiro, on top of a google maps, but I do not know exactly how I will do this procedure. I already uploaded Data Layer with Geojson from layer.json file .

How should I do it? Follow the "Graph.json" file for me to load.

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This file represents a layer on the map with the municipalities of the state of Rio de Janeiro. But on top of that layer, I need to upload a file called Graph.json that contains the routes through the demarcated polylines in that file. Only I have no more or less notion of how to load this ". json" with Polyline.

Answer 1

You must make a Ajax or use the Jquery function getJson():

$.getJSON( "ajax/test.json", function( data ) {
  //A variável data está o seu arquivo json que é retornado.
  console.log(data);    
 });